Securus is BAUER’S patented cartridge monitoring device that ensures 100% utilization of the air processing cartridge(s). Securus takes the guessing out of when to replace a cartridge(s) and is a must for applications that require dry air all the time. A traffic light-like display gives the operator a visual status of the Securus cartridge: green = good, yellow = warning of impending cartridge saturation and red = cartridge saturation with automatic shutdown. For optimum purity, the shutdown cannot be overridden and a new cartridge(s) must be installed. A damaged or disconnected cable between the Securus filter housing and display will also cause a fault condition. Securus pays for itself by providing 100% utilization of the air processing cartridge(s), eliminating premature cartridge replacement, and by preventing down time and unscheduled maintenance to the air processing system and downstream system as a result of overdue cartridge replacement. The compressor’s control circuit provides power for operation. Securus is rated for working pressures for 2000 to 6000 PSIG and flow rates to 125 SCFM.